Is she fat and healthy? If so i wouldny worry about it. If you dont want to waste rats then try feeding her first then if she dont eat feed it to a different snake. We refreeze our rats one time and thats it. Never had a problem with it. Females will go off food for breeding season but usually not right away but its possible. Keep putting you male in there and keep offering food. Our females usually eat really good at the beginning to gear up for follicle growth. Also keep in mind if it is her first year she might not produce...